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Finding the Third Proportional to 52,830.75 and 81,930.75

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Solution

The third proportional to 52,830.75 and 81,930.75 is: 127,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,830.75 : 81,930.75 = 81,930.75 : x
  2. Step 2: Convert to fraction form
    52,830.75/81,930.75 = 81,930.75/x
  3. Step 3: Cross multiply
    52,830.75x = 81,930.75 × 81,930.75
  4. Step 4: Simplify right side
    52,830.75x = 6,712,647,795.56
  5. Step 5: Solve for x
    x = 6,712,647,795.56/52,830.75
  6. Step 6: Final answer
    x = 127,059.48

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.